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  1. New study to shed light on persistence of Ebola virus in wastewater

    PITTSBURGH, PA, Aug. 27, 2015 -- In light of the historic outbreak of the Ebola virus in West Africa that began in March 2014, which has killed more than 11,000 people since, new research conducted by a group of microbial risk-assessment and virology researchers suggests that the procedures for disposal of Ebola-contaminated liquid waste might underestimate the virus' ability to survive in wastewater . Current epidemic response procedures from both the World Health Organization and the Centers for Disease Control and Prevention advise that after a period of days, Ebola-contaminated liquid can be disposed of directly into a sewage system without additional treatment . However, new data recently published by the University of Pittsburgh, Drexel University and the National Institutes of Health (NIH) indicate that Ebola can survive in detectable concentrations in wastewater for at least a week or longer. "Initial research by the WHO and CDC recommended disposing of Ebola-contaminated liquid waste into a latrine or treatment system without disinfection because the virus wasn't expected to persist in wastewater," explained Kyle J. Bibby, assistant professor of civil and environmental engineering at Pitt's Swanson School of Engineering and principal investigator of the study "Persistence of Ebola Virus in Sterilized Wastewater. "However, we found that the virus persisted over a period of at least eight days." The researchers gathered their data by observing the change in viral particle concentration in two samples, spiked with different concentrations of the virus, over an eight-day period. The testing was performed in a secured laboratory at the NIH. While the researchers observed a 99-percent decrease in concentration after the first day, the remaining viral particles were detectable for the duration of the experiment. "These results demonstrate a greater persistence of Ebola virus in wastewater than previously speculated," said Charles Haas, co-author; head of the Department of Civil, Architectural, and Environmental Engineering; the LD Betz Professor of Environmental Engineering; and director of the Environmental Engineering Program. "While the Ebola virus was found to be generally less persistent than enteric viruses in wastewater, the identified survival period might suggest a potential of a wastewater exposure route." The team also noted that the virus' seemingly early decay upon entry into wastewater might be due to the viral particles clumping together or latching onto other particles in the water, rather than the virus dying. These phenomena would actually make the viruses less susceptible to environmental factors, such as disinfectants, that would normally kill them off. A proposed solution, already adopted by the WHO, would be to hold the contaminated liquid waste for a longer period of time before releasing it into the sewage system. Another might be to pretreat it with an antiviral agent, such as chlorine, although performance data on disinfectants is needed as well. These options would provide more time for the viral concentration to decay and for the remaining viruses to be inactivated. See also: " Addressing Ebola Concerns, Worker Safety " " WERF to start new studies addressing Ebola, antibiotic resistance challenges " ###

    Online Articles

    Online Articles

    Thu, 27 Aug 2015

  2. Houston renews five-year, $30M contract for water, wastewater operations, maintenance

    Severn Trent Services - North America announced that the City of Houston has renewed a five-year contract worth $30 million with the company for the operation and maintenance of its water and wastewater plant and maintenance of its collection and distribution systems.

    Online Articles

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    Thu, 27 Aug 2015

  3. TWDB approves over $31M in funding for water, wastewater system improvements

    The Texas Water Development Board recently approved over $31 million in financial assistance for water and wastewater system improvements across the state.

    Online Articles

    Online Articles

    Wed, 26 Aug 2015

  4. World Water Week: American student wins 2015 Stockholm Junior Water Prize

    During an award ceremony at World Water Week in Stockholm, Sweden, Perry Alagappan from the U.S. received the 2015 Stockholm Junior Water Prize for inventing a filter through which toxic heavy metals from electronic waste can be removed from water.

    Online Articles

    Online Articles

    Wed, 26 Aug 2015

  1. Santa Clara to improve water services with SCADA system for Super Bowl 50

    Online Articles

    Online Articles

    Wed, 26 Aug 2015

  2. Ben Franklin SGICC updates study on shale gas wastewater treatment, disposal

    Three years after commissioning a study in 2012 on the status of wastewater being produced in the Commonwealth of Pennsylvania, the Ben Franklin Shale Gas Innovation & Commercialization Center is updating the report due to a variety of factors.

    Online Articles

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    Wed, 26 Aug 2015

  3. Coca-Cola on track to meet full 2020 water replenishment goal by end of 2015

    The Coca-Cola Company and its global bottling partners, the Coca-Cola System, have announced that they are on track to meet their 2020 water replenishment goal by the end of 2015.

    Online Articles

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    Tue, 25 Aug 2015

  4. Aquatech to supply thermal desalination system for Oman refinery project

    Aquatech recently announced that it has been awarded a contract to design and supply a multiple effect distillation seawater desalination system for the Sohar Refinery Improvement Project in Oman, a nation on the Arabian Peninsula.

    Online Articles

    Online Articles

    Tue, 25 Aug 2015

  5. Santa Clara RWF receives excellence award for major $1.5B rebuilding plan

    The California Association of Sanitation Agencies recently presented an Achievement Award for Organizational Excellence to the Santa Clara Regional Wastewater Facility Capital Improvement Program for its managerial excellence during the startup stage of the program.

    Online Articles

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    Tue, 25 Aug 2015

  6. World Water Week: CH2M earns Stockholm Industry Water Award

    During an award ceremony at World Water Week 2015, taking place Aug. 23-28 in Stockholm, Sweden, the Stockholm International Water Institute presented the Stockholm Industry Water Award to CH2M for its leadership in potable water reuse .

    Online Articles

    Online Articles

    Mon, 24 Aug 2015

  7. David Mutombo joins Hatch Mott MacDonald's Water, Wastewater Practices

    Hatch Mott MacDonald recently announced that David Mutombo, MBA, PMP, P.Eng., has joined the company's Water and Wastewater Practices for Canada. He is based in HMM's office in the city of Burlington, Ontario.

    Online Articles

    Online Articles

    Fri, 21 Aug 2015

  8. Polk County, FL, to implement new 4-MGD water production facility

    Polk County's Central Regional Utility Service Area in Florida will be implementing a new 4-million-gallon-per-day water production facility that will help improve services for approximately 15,500 residents within the 19 square-mile service area.

    Online Articles

    Online Articles

    Thu, 20 Aug 2015

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